How much is it worth? (guitar and amp content)

I'm clearing out my loft and considering getting rid of one of these:
Epiphone 335 Dot in cherry red (sans case)
And one of these:
Marshall G30R-CD amp with a channel switch. Also got leads and a Marshall Guv'nor effects pedal.
The guitar used to be my pride and joy but there's no point in being sentimental and keeping it if I don't have the time to play it.
Both in good condition (or at least they were 6 years ago when I last played them). Any idea what they're worth? Where's best to sell them? Is it best selling separately?

Mmmm, my favourite hollow-body style, and I love the colour, too. I'd love it, but I've never had the discipline to sit down and learn to play, sadly.
I think there are guitar-specific fora where you might have a good chance, worth have a dig around on Google, if only to get some ideas as to value; you could stick an ad on the for sale section here, once you've got some ideas as to value.
Good luck, that's quality gear, I'm sure you'll be able to send them to good homes.

I'd go with the wll art suggestion if I were you. I think you're looking at around £200 for the lot on a good day, the second hand market seems fairly flat unless you're prepared to sell really low.

I wouldn't bother doing that if I were you on the off chance you'll want to play later on. No point taking a loss now then having to buy more kit later. If you like the guitar, definitely keep that if it plays nice. Amps have moved on a fair bit so you could do a lot better than what you have.

Sold a nice Yamaha guitar and Fender amp on ebay before christmas, expecting £175-200.
It sold for £70.
I was very disappointed, as I'd rather not sell it at that price, but swings and roundabouts, I bought a nice Olympus DSLR for a bargain £75 last week.

I'd give £150 for it tomorrow, but maybe less than what you are after?
Where are you?